Building construction



Dec. 27, 1932. v z 1,892,225

BUILDING CONSTRUCTION Filed April 18, 1931 I N V EN TOR. x 'nza ER/cvf A7. Zs/vz f5,

ATTORNEY.

Patented Dec. 27, 1932 PATENT OFFICE FREDERICK M. VENZIE. OF PHILADELPHIA, PENNSYLVANIA BUILDING CONSTRUCTION Application filed April 18,

This invention, generally stated, relates to a building construction and has more particular relation to flooring made up of precast slabs which may be either of waterproof- 5 ing material per se or provided with a coatmg or layer of Waterproofing material.

One object of the present invention is to provide a simple, eflicient, and comparatively inexpensive arrangement of parts for the 10 rapid assembling by unskilled labor of flooring possessed of waterproofing characteristics.

A further object of the instant invention is to provide an arrangement of parts of 15 the character stated in which adjacent precast slabs are tied or coupled together by means of re-inforcing rods or wires both longitudinally and laterally of the flooring. A further object of the present invention is to provide a structure of the character stated in which adjacent pre-cast slabs are not only tied or coupled together longitudinally of a building but are tied or coupled in pairs to metal floor beams.

A still further object of the present invention resides in the providing of general details of structure and arrangement of parts as will hereinafter more fully appear.

a The invention consists of the novel construction hereinafter more fully described and finally claimed.

The nature, characteristic features and scope of the invention will be more fully understood from the following description taken in connection with the accompanying drawing forming part hereof, and in which:

Fig. 1 is a view principally in longitudinal section of a flooring embodying the invention;

Fig. 2 is a top or plan view of Fig. 1;

Fig. 3 is a view in end elevation of a pair of precast slabs embodying the invention;

Fig. 4 is a fragmentary sectional View of a floor slab of waterproofing material per se; and

Fig. 5 is a similar view of a slab having a coating of waterproofing material applied to the upper face thereof.

, For the'purpose of illustrating my lnvention I have shown in the accompanying draw- 1931. Serial No. 531,072.

ing one form thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my lnvention consists can be variously arranged and organized and that my invention 18 notlimited to the precise arrangement and organization of the instrumentalities as herein shown and described.

Referring to the drawing in detail, the reference numeral designates spaced floor members as I-beams for supporting my novel pre-east slabs 11. These slabs may be made of suitable waterproofing material per se or have applied to the upper face thereof a coating 12 of desired waterproofing material. Each slab is provided upon its under face with spaced, pendant, longitudinally extended ribs 13, best seen in Fig. 3. Embedded in each rib is a longitudinally extended reinforcing rod or wire 14 the opposed ends of which protrude through the end walls of the slabs, said end walls being cut away as at 15 and 16 for this purpose. The rods or wires 14 extend along the bottom portion of the slabs throughoutthe major portion of their extent and are then deflected upwardly at an angle as at 17, and then horizontally as at 18, and the terminals clinched under the upper flanges of the I-beams as at 19, best seen in Fig. 1. The slabs at each end are provided with lugs 20 by means of which the slabs are supported upon the upper flanges of the I-beams. Embedded in the slabs in a plane above the rods or wires 14 are longitudinal wires or rods 21 and lateral wires or rods 22. The slabs at their ends are cut away at 24 into which space the ends of the longitudinal rods or wires 21 extend and the sides of the slabs are cut away at 23 into which space the ends of cross wires or rods 22 extend. In practice the exposed ends of wires or rods 21 of adjacent slabs are twisted together as at 25 and the exposed ends of wires or rods 22 of adjacent slabs are twisted to gether at 26. Thus, the pro-cast slabs 11 are tied or coupled together both longitudinally and laterally of a building and the slabs are also tied or coupled directly to the floor 100 beams. The slabs 11 are also provided with tongue and groove connections 2728, see Fig. 3, for the purpose of forming a good connection of adjacent slabs. A surfacing 29 of suitable floor material is laid over the slabs 11 to complete the flooring.

What is claimed is:

1. In a building construction of the character stated, the combination of flanged floor beams and pre-cast slabs supported by said beams, said slabs having embedded therein longitudinally extended reinforcing rods, the terminals of which rods extend beyond the slab ends and are clinched with respect to the uppermost of the flanges of said beams to interlock adjacent slabs with respect to one another and to said beams, and additional longitudinally extended rods similarly embedded in said slabs, which latter rods of adjacent slabs are twisted together independently of said beams, the ends of said slabs each being provided with lugs arranged for abutting relation with adjacent slabs, there being a space between adjacent lugs for twisting accommodation.

2. In a building construction of the character stated, the combination of flanged floor beams and pre-cast slabs supported b said beams, said slabs having embedded t erein longitudinally extended reinforcing rods, the terminals of which rods extend beyond the slab ends and are clinched with respect to the uppermost of the flanges of said beams to interlock adjacent slabs with respect to one another and to said beams, and additional longitudinally extended rods similarly embedded in said slabs, which latter rods of adjacent slabs are twisted together independently of said beams, the ends of said slabs laterally considered being cut away at intervals to accommodate the terminals'of said rods.

3. In a building construction of the character stated, the combination of flanged floor beams and pre-cast slabs supported by said beams, said slabs having embedded therein longitudinally extended reinforcing rods, the terminals of which rods extend beyond the slab ends and are clinched with respect to the uppermost of the flanges of said beams to interlock adjacent slabs with respect to one another and to said beams, and laterally extended rods embedded in said slabs the terminals of which in adjacent slabs are twisted together to couple said slabs in a transverse direction, the sides of said slabs being cut away to accommodate the terminals of said laterally extended rods.

FREDERICK M. VENZIE. 

